• Age: 4 to 7
  • The average flow rate for both males and females is 10 mL/sec.
• Age: 8 to 13
  • The average flow rate for males is 12 mL/sec.
  • The average flow rate for females is 15 mL/sec.
• Age: 14 to 45
  • The average flow rate for males is 21 mL/sec.
  • The average flow rate for females is 18 mL/sec.
• Age: 46 to 65
  • The average flow rate for males is 12 mL/sec.
  • The average flow rate for females is 15 mL/sec.
• Age: 66 to 80
  • The average flow rate for males is 9 mL/sec.
  • The average flow rate for females is 10 mL/sec.

Several circular muscles normally regulate urine flow, and if any becomes weak or dysfunctional, an increase in urine flow and/or urinary incontinence may result.

If there is a bladder outlet obstruction or if the bladder muscle is weak, a decrease in urine flow may result.

Any abnormal results should be discussed with you and explained by your health care provider.